Invasive Beetles Threaten Native Trees in Oklahoma and Oregon

A new population of the destructive Emerald Ash Borer has been confirmed in the Chickasaw National Recreation Area in Oklahoma, according to KXII. This adds to the seven counties in Oklahoma where the beetle has been found, with previous detections in Carter, Choctaw, McCurtain, Love, and Pushmataha Counties.

The Oklahoma Forestry Service is urging residents to take preventive measures, such as burning firewood where it is purchased, to help limit the beetle's spread. Meanwhile, in Oregon, the Mediterranean oak borer is threatening native trees in the Willamette Valley.

Oregon Public Broadcasting reports that this pest has been found in Clackamas, Marion, Multnomah, Polk, Washington, and Yamhill counties. The Mediterranean oak borer can kill oak trees by boring into them and introducing harmful fungi.

This beetle made its North American debut in California in 2017 and was spotted in Multnomah County the following year. Officials worry about the ecological impact, as the loss of native Oregon white oaks could reduce habitats for numerous plants and animals, while also increasing wildfire risks.

Additionally, the emerald ash borer, found in five counties in Oregon since 2022, is expected to devastate native ash trees, drastically affecting local waterways and associated wildlife. While some arborists recommend inoculating ash trees against the emerald ash borer, there is currently no effective treatment for the Mediterranean oak borer.

The ongoing climate crisis is also exacerbating these pest issues, as stressed trees become more susceptible to infestations.